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  • Question

  • In a shaft, the shear stress is not directly proportional to


  • Options
  • A. radius of the shaft
  • B. angle of twist
  • C. length of the shaft
  • D. modulus of rigidity.

  • Correct Answer
  • length of the shaft 

    • Theory of Structures problems

    Search Results

    • 1. Ab and Ac are the cross sections of bronze and copper bars of equal length, ?b, ?c are their respective stresses due to load P. If Pb and Pc are the loads shared by them, (where Eb and Ec are their modulii).

    • Options
    • A.
    • B. P = Pb + Pc
    • C. P = Ab ?b + Ac ?b
    • D. all the above
      • Discuss
    • 2. The load on a spring per unit deflection, is called

    • Options
    • A. stiffness
    • B. proof resilience
    • C. proof stress
    • D. proof load.
      • Discuss
    • 3. A simply supported beam A carries a point load at its midspan. An other identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The moment of inertia of a circular section about any diameter D, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. The locus of the moment of inertia about inclined axes to the principal axis, is

    • Options
    • A. straight line
    • B. parabola
    • C. circle
    • D. ellipse.
      • Discuss
    • 7. The equivalent length of a column of length L, having one end fixed and other end hinged, is

    • Options
    • A. 2L
    • B. L
    • C.
    • D.
      • Discuss
    • 8. The maximum height of a masonry dam of a triangular section whose base width is b and specific gravity s, is

    • Options
    • A. bs
    • B. b.s
    • C. bs
    • D. s b
    • E.
      • Discuss
    • 9. The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is

    • Options
    • A. circle
    • B. parabola
    • C. ellipse
    • D. straight line.
      • Discuss
    • 10. The forces acting normally on the cross section of a bar shown in the given figure introduce

    • Options
    • A. compressive stress
    • B. tensile stress
    • C. shear stress
    • D. none of these.
      • Discuss

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